Button code to open PDF doc?

does anyone know the code that allows you to open a PDF document (in Acrobat) from Flash? Is this even possible? Basically, i have 3 PDF docs that need to be launched from a 3 buttons in my swf.

I would be able to do it if they wanted to post the PDFs on a webpage, but they actually want to run the swf locally and have it link to documents on their hard drive.

Anyone? oh yeah… this project is due today :wink: